GCD of 978, 990, 841, 728 Calculator

Given Input numbers are 978, 990, 841, 728

In the factoring method, we have to find the divisors of all numbers

Divisors of 978 :

The positive integer divisors of 978 that completely divides 978 are.

1, 2, 3, 6, 163, 326, 489, 978

Divisors of 990 :

The positive integer divisors of 990 that completely divides 990 are.

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

Divisors of 841 :

The positive integer divisors of 841 that completely divides 841 are.

1, 29, 841

Divisors of 728 :

The positive integer divisors of 728 that completely divides 728 are.

1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728

GCD of numbers is the greatest common divisor

So, the GCD (978, 990, 841, 728) = 1.

Given numbers are 978, 990, 841, 728

The list of prime factors of all numbers are

Prime factors of 978 are 2 x 3 x 163

Prime factors of 990 are 2 x 3 x 3 x 5 x 11

Prime factors of 841 are 29 x 29

Prime factors of 728 are 2 x 2 x 2 x 7 x 13

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 978, 990, 841, 728

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(978, 990) = 161370

GCD(978, 990) = ( 978 x 990 ) / 161370

= 978 / 990

= 978

Step2:

LCM(6, 841) = 5046

GCD(6, 841) = ( 6 x 841 ) / 5046

= 6 / 841

= 6

Step3:

LCM(1, 728) = 728

GCD(1, 728) = ( 1 x 728 ) / 728

= 1 / 728

= 1

So, Greatest Common Divisor of 978, 990, 841, 728 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 929, 459, 174, 244
• GCD of 513, 951, 190, 477
• GCD of 756, 849, 362, 611
• GCD of 430, 822, 724, 544
• GCD of 204, 948, 640, 563

Given numbers are 978, 990, 841, 728
The greatest common divisor of numbers 978, 990, 841, 728 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 978, 990, 841, 728 is 1.

1. What is the GCD of 978, 990, 841, 728?

GCD of given numbers 978, 990, 841, 728 is 1

2. How to calculate the greatest common divisor of 978, 990, 841, 728?

We can find the highest common divisor of 978, 990, 841, 728 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 978, 990, 841, 728 i.e 1.

3. How can I use the GCD of 978, 990, 841, 728Calculator?

Out the numbers 978, 990, 841, 728 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.